Did you perform the Lighting System Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Disconnect the suspect backup lamp connector.
2. Connect a DMM from the suspect backup lamp connector cavity A (LT GRN) to ground.
3. Turn the ignition switch to the ON position.
4. Place the gear selector lever in the REVERSE position.

Is the voltage within the specified range?

10-15 V

Go to Step 3

Go to Step 5

Connect a DMM from the suspect backup lamp connector cavity A (LT GRN) to cavity G (BLK).

Is the voltage within specified range?

10-15 V

Go to Step 4

Go to Step 6

Replace the suspect backup lamp. Refer to Backup Lamp Replacement .

Is the backup lamp replacement complete?

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Go to Step 7

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Repair the open in CKT 24 (LT GRN) between S410 and the suspect backup lamp. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

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Go to Step 7

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Repair the open in CKT 850 (BLK) between S413 and the suspect backup lamp. Refer to Wiring Repairs in Wiring Systems.

Is the circuit repair complete?

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Go to Step 7

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK.

Go to Step 2